SPMWHT541MD5WAU0SD LED Equivalent & Substitute Parts

Part Overview

The SPMWHT541MD5WAU0SD is a Samsung Semiconductor LM561B series warm white LED (3500K) designed for surface mount applications in LED lighting systems. This component operates at 2.95V forward voltage with a test current of 65mA, delivering 33 lumens at 25°C with a color rendering index of 80. The part is classified as "Not For New Designs," indicating it has been superseded in Samsung's product portfolio. Organizations using this component in active production or maintenance applications require equivalent alternatives that maintain electrical and mechanical compatibility while offering improved performance characteristics or active product status.

Substiute Parts

SPMWHT541MD5WAU0SD

Samsung Semiconductor, Inc.In Stock: 1214SPMWHT541MD5WAU0SD Datasheet

Current PartRFQ

SPMWHT541MP5WAU0S5

Samsung Semiconductor, Inc.In Stock: 3242SPMWHT541MP5WAU0S5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPMWHT541MD5WAU0SD is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Color temperature: 3500K (warm white)
• Forward voltage: 2.95V (typical)
• Test current: 65mA
• Color rendering index: 80
• Viewing angle: 120°
• Package form factor: 5630 (4-SMD configuration)
• Mounting type: Surface mount
• Physical dimensions: 5.00mm × 3.00mm footprint
• Compliance standards: RoHS status and moisture sensitivity level

Substitution Logic: The SPMWHT541MP5WAU0S5 qualifies as a direct substitute because it maintains identical electrical specifications (2.95V, 65mA test current, 3500K color temperature, 80 CRI, 120° viewing angle) and mechanical compatibility (5630 package, surface mount, 5.00mm × 3.00mm footprint). The substitute operates within the same thermal and compliance framework (RoHS3, MSL 2A). Performance improvements in luminous flux (34 lm vs. 33 lm) and efficiency (177 lm/W vs. 172 lm/W) represent enhanced capability within the same electrical operating envelope. The substitute series designation (LM561B Plus) indicates product line advancement while maintaining backward compatibility with the original design specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SPMWHT541MP5WAU0S5

The SPMWHT541MP5WAU0S5 is the qualified substitute for SPMWHT541MD5WAU0SD applications. Selection rationale is based on the following engineering factors:

Product Status Alignment: The main part carries "Not For New Designs" status, indicating Samsung has transitioned this component to end-of-life management. The substitute maintains active product status, ensuring continued availability, supply chain stability, and manufacturer support for new production runs and design revisions.

Electrical Compatibility: Both components operate at identical forward voltage (2.95V) and test current (65mA), ensuring direct circuit compatibility without modification to current-limiting resistor networks or power supply specifications. The substitute's higher maximum current rating (180mA vs. 150mA) provides additional design margin without affecting nominal operating conditions.

Compliance and Certification: The substitute achieves RoHS3 compliance, representing enhanced environmental and material standards compared to the main part's RoHS compliance. Both components maintain identical moisture sensitivity level (MSL 2A, 4 weeks), requiring equivalent handling and storage protocols.

Thermal Performance: The substitute demonstrates improved thermal resistance (15°C/W vs. 16°C/W), resulting in lower junction temperature rise under identical operating conditions. This enhancement supports extended component lifespan and improved reliability in thermally constrained applications.

Mechanical Compatibility: The substitute's reduced seated height (0.80mm vs. 0.90mm) provides clearance compatibility with existing PCB layouts and assembly fixtures. The 5630 package footprint remains identical (5.00mm × 3.00mm), enabling direct PCB placement without artwork modification.

Performance Enhancement: The substitute delivers measurable efficiency improvement (177 lm/W vs. 172 lm/W) and higher luminous flux output (34 lm vs. 33 lm) within the same electrical operating envelope, resulting in improved system-level lighting performance without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can SPMWHT541MP5WAU0S5 be used as a direct replacement in existing SPMWHT541MD5WAU0SD designs?

A: Yes. The substitute maintains identical forward voltage (2.95V), test current (65mA), color temperature (3500K), color rendering index (80), viewing angle (120°), and 5630 package footprint. No circuit modifications are required. The substitute's reduced height (0.80mm vs. 0.90mm) and improved thermal resistance (15°C/W vs. 16°C/W) represent design improvements compatible with existing layouts.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by matching forward voltage (2.95V), test current (65mA), color temperature (3500K), color rendering index (80), and maximum current rating compatibility. The substitute's 180mA maximum current exceeds the main part's 150mA rating, providing additional operational margin while maintaining identical nominal operating conditions.

Q: Are there package compatibility considerations between these parts?

A: Both components use the 5630 package form factor with 4-SMD configuration and identical footprint dimensions (5.00mm × 3.00mm). The substitute's reduced seated height (0.80mm vs. 0.90mm) is mechanically compatible with existing PCB designs and assembly processes. No artwork or fixture modifications are necessary.

Q: How do compliance certifications affect substitution decisions?

A: The substitute achieves RoHS3 compliance, representing enhanced environmental standards compared to the main part's RoHS compliance. Both components maintain identical moisture sensitivity level (MSL 2A, 4 weeks), requiring equivalent handling and storage protocols. The substitute's enhanced compliance status supports regulatory requirements for new product certifications.

Q: What performance improvements does the substitute provide?

A: The SPMWHT541MP5WAU0S5 delivers 177 lm/W efficiency versus 172 lm/W for the main part, and 34 lm luminous flux versus 33 lm. Thermal resistance improves to 15°C/W from 16°C/W. These enhancements occur within identical electrical operating parameters, resulting in improved system-level lighting performance without circuit redesign.

Q: Why is the main part classified as "Not For New Designs"?

A: This classification indicates Samsung has transitioned the SPMWHT541MD5WAU0SD to end-of-life status and recommends the LM561B Plus series (SPMWHT541MP5WAU0S5) for new product development. The substitute provides equivalent functionality with enhanced performance characteristics and active product support.

Q: Are thermal management considerations different between these parts?

A: The substitute's improved thermal resistance (15°C/W vs. 16°C/W) results in lower junction temperature rise under identical operating conditions. This enhancement supports extended component lifespan and improved reliability. Both components require equivalent thermal management practices in high-current or high-ambient-temperature applications.

Q: What inventory and supply chain factors should influence substitution decisions?

A: The main part (SPMWHT541MD5WAU0SD) carries "Not For New Designs" status with limited inventory availability. The substitute (SPMWHT541MP5WAU0S5) maintains active product status with significantly higher inventory levels (3192 pcs vs. 1110 pcs), ensuring supply chain continuity and supporting production scaling requirements.